Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-05-2022 04:19

General

  • Target

    6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe

  • Size

    853KB

  • MD5

    274088979f9e5a06e3731912688e9bb1

  • SHA1

    d713dac02cde2d2103cc97d7a8a7e35507a437e3

  • SHA256

    6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6

  • SHA512

    ef9164fc6b226ca4f6b0f817947dcc2eea3a613d88b0bd25065a0ea13818b101626118e3fee430601c91130bdc3e461f1b0c6235c590647d5f9378b2a936bff7

Malware Config

Extracted

Family

djvu

C2

http://ugll.org/test1/get.php

Attributes
  • extension

    .dfwe

  • offline_id

    eBNgvyGQV1Hmt9DBdxVRs8qPi1agsS7OaohPmit1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://ugll.org/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-j3AdKrnQie Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0480JIjdm

rsa_pubkey.plain

Extracted

Family

vidar

Version

52.1

Botnet

517

C2

https://t.me/verstappenf1r

https://climatejustice.social/@ronxik312

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 8 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

  • suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

  • Vidar Stealer 5 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe
    "C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3392
    • C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe
      "C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3888
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b9949175-d717-4ff6-9686-2c2cd4f5d594" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1912
      • C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe
        "C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:5088
        • C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe
          "C:\Users\Admin\AppData\Local\Temp\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3440
          • C:\Users\Admin\AppData\Local\eae633d2-9d01-4585-a600-687b4d260ad0\build2.exe
            "C:\Users\Admin\AppData\Local\eae633d2-9d01-4585-a600-687b4d260ad0\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4428
            • C:\Users\Admin\AppData\Local\eae633d2-9d01-4585-a600-687b4d260ad0\build2.exe
              "C:\Users\Admin\AppData\Local\eae633d2-9d01-4585-a600-687b4d260ad0\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4884

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll
    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll
    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
    Filesize

    727B

    MD5

    8ae6f45bb6c9f288a96a3402dc17e2d9

    SHA1

    9ddb0d782cb4728675a1f5b61cfc632997349cdf

    SHA256

    ae4681e5db7de9744bdd78a943d6be6a390aa925125935d6cb691a27c8b2ebd3

    SHA512

    ee94f18f21437c1fba42cca69d535997c89438801ea6e823e99d384e9bc0239b041dc5ed854063a571bac2bbd2f83d7113c7f456d130b15e7db847e7fe4e8ec7

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
    Filesize

    471B

    MD5

    b1c4234d2346ca5a2267de9f0bab4b81

    SHA1

    d6d10976b258ee86430063fdfb1838bb73838aeb

    SHA256

    e75d5e79323e42e337cf188a296db211f5d7dd488d03adf4b1be7836f997e3ed

    SHA512

    8b1d4c34ad847b73d060cb35dba350032be0a8cd82637a5c52805c078ea986ea44446040f588fb4edda4a233e424bdb6dc3ba016b7647936ec4ef4f971ff1e17

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
    Filesize

    402B

    MD5

    e6f04094fb997210ab1b7c58ea04dc0a

    SHA1

    9177b15aed357ad28040721d1c301827b9e779df

    SHA256

    a138162d8315a76cf00931f83c9676c1d65863da57e91caf2292fbd34b71cd0d

    SHA512

    9951ad2aeeca7527052cf5d417563f8a64be27d3a1358120b68b38f0fa59c95010023826b3157ee15ebf6eef9df56279d87d961015ba62903f557847af88eefb

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
    Filesize

    396B

    MD5

    86b6f41d103edd5cf7e2b2c21ef24dc7

    SHA1

    921a033e0c722ee1bcc232eaa210704c05895c77

    SHA256

    6ad82fb168cbf98107bc98c2a0de6051054b2c640e865249a1f3851fca5783b5

    SHA512

    2b3a7ce2064cb39960c03b6fb5af06047df32f9313e5e090e8a5237178b66f85f1724549e9145e38cd183109f5170799305b5b485869520ff7e37f2b4ae375c9

  • C:\Users\Admin\AppData\Local\b9949175-d717-4ff6-9686-2c2cd4f5d594\6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6.exe
    Filesize

    853KB

    MD5

    274088979f9e5a06e3731912688e9bb1

    SHA1

    d713dac02cde2d2103cc97d7a8a7e35507a437e3

    SHA256

    6e94dd64b105ef7703bf8edd3821e1f1b18aa80410f442a0f5f435f4b232aeb6

    SHA512

    ef9164fc6b226ca4f6b0f817947dcc2eea3a613d88b0bd25065a0ea13818b101626118e3fee430601c91130bdc3e461f1b0c6235c590647d5f9378b2a936bff7

  • C:\Users\Admin\AppData\Local\eae633d2-9d01-4585-a600-687b4d260ad0\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\eae633d2-9d01-4585-a600-687b4d260ad0\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\eae633d2-9d01-4585-a600-687b4d260ad0\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • memory/1912-137-0x0000000000000000-mapping.dmp
  • memory/3392-134-0x00000000049E0000-0x0000000004AFB000-memory.dmp
    Filesize

    1.1MB

  • memory/3392-133-0x0000000002E9D000-0x0000000002F2F000-memory.dmp
    Filesize

    584KB

  • memory/3440-140-0x0000000000000000-mapping.dmp
  • memory/3440-144-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3440-149-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3440-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3888-136-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3888-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3888-132-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3888-131-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3888-130-0x0000000000000000-mapping.dmp
  • memory/4428-150-0x0000000000000000-mapping.dmp
  • memory/4428-157-0x0000000000637000-0x0000000000661000-memory.dmp
    Filesize

    168KB

  • memory/4428-158-0x0000000000560000-0x00000000005A9000-memory.dmp
    Filesize

    292KB

  • memory/4884-154-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4884-153-0x0000000000000000-mapping.dmp
  • memory/4884-156-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4884-159-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4884-160-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4884-161-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/5088-143-0x0000000004827000-0x00000000048B9000-memory.dmp
    Filesize

    584KB

  • memory/5088-139-0x0000000000000000-mapping.dmp